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-rw-r--r--acinclude.m4134
-rw-r--r--configure.in17
2 files changed, 61 insertions, 90 deletions
diff --git a/acinclude.m4 b/acinclude.m4
index 56beb9e7a0..9bd6390932 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -701,92 +701,66 @@ AC_DEFUN([AC_WIRESHARK_ZLIB_CHECK],
then
#
# Well, we at least have the zlib header file.
+ # We link with zlib to support uncompression of
+ # gzipped network traffic, e.g. in an HTTP request
+ # or response body.
#
- # Check for "gzgets()" in zlib, because we need it, but
- # some older versions of zlib don't have it. It appears
- # from the zlib ChangeLog that any released version of zlib
- # with "gzgets()" should have the other routines we
- # depend on, such as "gzseek()", "gztell()", and "zError()".
- #
- # Another reason why we require "gzgets()" is that
- # some versions of zlib that didn't have it, such
- # as 1.0.8, had a bug in "gzseek()" that meant that it
- # doesn't work correctly on uncompressed files; this
- # means we cannot use version 1.0.8. (Unfortunately,
- # that's the version that comes with recent X11 source,
- # and many people who install XFree86 on their Slackware
- # boxes don't realize that they should configure it to
- # use the native zlib rather than building and installing
- # the crappy old version that comes with XFree86.)
- #
- # I.e., we can't just avoid using "gzgets()", as
- # versions of zlib without "gzgets()" are likely to have
- # a broken "gzseek()".
- #
- AC_CHECK_LIB(z, gzgets,
- [
- if test "x$zlib_dir" != "x"
- then
- #
- # Put the "-I" and "-L" flags for zlib at
- # the beginning of CFLAGS, CPPFLAGS, and
- # LIBS.
- #
- LIBS=""
- AC_WIRESHARK_ADD_DASH_L(LIBS, $zlib_dir/lib)
- LIBS="$LIBS -lz $wireshark_save_LIBS"
- else
- LIBS="-lz $LIBS"
- fi
- AC_DEFINE(HAVE_LIBZ, 1, [Define to use libz library])
- ],[
- if test "x$zlib_dir" != "x"
- then
- #
- # Restore the versions of CFLAGS, CPPFLAGS,
- # and LIBS before we added the "-with-zlib="
- # directory, as we didn't actually find
- # zlib there, or didn't find a zlib that
- # contains gzgets there.
- #
- CFLAGS="$wireshark_save_CFLAGS"
- CPPFLAGS="$wireshark_save_CPPFLAGS"
- LIBS="$wireshark_save_LIBS"
- fi
- want_zlib=no
- ])
- fi
+ if test "x$zlib_dir" != "x"
+ then
+ #
+ # Put the "-I" and "-L" flags for zlib at
+ # the beginning of CFLAGS, CPPFLAGS, and
+ # LIBS.
+ #
+ LIBS=""
+ AC_WIRESHARK_ADD_DASH_L(LIBS, $zlib_dir/lib)
+ LIBS="$LIBS -lz $wireshark_save_LIBS"
+ else
+ LIBS="-lz $LIBS"
+ fi
+ AC_DEFINE(HAVE_LIBZ, 1, [Define to use libz library])
- if test "x$want_zlib" != "xno"
- then
#
- # Well, we at least have the zlib header file and a zlib
- # with "gzgets()".
+ # Check for "inflatePrime()" in zlib, which we need
+ # in order to read compressed capture files.
#
- # Now check for "gzgets()" in zlib when linking with the
- # linker flags for GTK+ applications; people often grab
- # XFree86 source and build and install it on their systems,
- # and they appear sometimes to misconfigure XFree86 so that,
- # even on systems with zlib, it assumes there is no zlib,
- # so the XFree86 build process builds and installs its
- # own zlib in the X11 library directory.
+ AC_CHECK_FUNCS(inflatePrime)
+
+ if test "x$ac_cv_func_inflatePrime" = "xyes" ; then
+ #
+ # Now check for "inflatePrime()" in zlib when
+ # linking with the linker flags for GTK+
+ # applications; people often grab XFree86 source
+ # and build and install it on their systems,
+ # and they appear sometimes to misconfigure
+ # XFree86 so that, even on systems with zlib,
+ # it assumes there is no zlib, so the XFree86
+ # build process builds and installs its
+ # own zlib in the X11 library directory.
+ #
+ # The zlib in at least some versions of XFree86
+ # is an older version that may lack "inflatePrime()",
+ # and that's the zlib with which Wireshark gets
+ # linked, so the build of Wireshark fails.
+ #
+ AC_MSG_CHECKING([for inflatePrime missing when linking with X11])
+ AC_TRY_LINK_FUNC(inflatePrime, AC_MSG_RESULT(no),
+ [
+ AC_MSG_RESULT(yes)
+ AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.)
+ ])
+ fi
+ else
#
- # The XFree86 zlib is an older version that lacks
- # "gzgets()", and that's the zlib with which Wireshark
- # gets linked, so the build of Wireshark fails.
+ # Restore the versions of CFLAGS, CPPFLAGS,
+ # and LIBS before we added the "-with-zlib="
+ # directory, as we didn't actually find
+ # zlib there.
#
- ac_save_CFLAGS="$CFLAGS"
- ac_save_LIBS="$LIBS"
- CFLAGS="$CFLAGS $GTK_CFLAGS"
- LIBS="$GTK_LIBS -lz $LIBS"
- AC_MSG_CHECKING([for gzgets missing when linking with X11])
- AC_TRY_LINK_FUNC(gzgets, AC_MSG_RESULT(no),
- [
- AC_MSG_RESULT(yes)
- AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.)
- ])
- CFLAGS="$ac_save_CFLAGS"
- LIBS="$ac_save_LIBS"
+ CFLAGS="$wireshark_save_CFLAGS"
+ CPPFLAGS="$wireshark_save_CPPFLAGS"
+ LIBS="$wireshark_save_LIBS"
+ want_zlib=no
fi
])
diff --git a/configure.in b/configure.in
index 61e67d170a..056a631515 100644
--- a/configure.in
+++ b/configure.in
@@ -1235,11 +1235,11 @@ else
fi
dnl zlib check
-AC_MSG_CHECKING(whether to use zlib for reading compressed capture files)
+AC_MSG_CHECKING(whether to use zlib for gzip compression and decompression)
AC_ARG_WITH(zlib,
AC_HELP_STRING([--with-zlib@<:@=DIR@:>@],
- [use zlib (located in directory DIR, if supplied) to read compressed data. @<:@default=yes, if available@:>@]),
+ [use zlib (located in directory DIR, if supplied) for gzip compression and decompression . @<:@default=yes, if available@:>@]),
[
if test $withval = no
then
@@ -1264,17 +1264,14 @@ else
AC_MSG_RESULT(yes)
AC_WIRESHARK_ZLIB_CHECK
if test "x$want_zlib" = "xno" ; then
- AC_MSG_RESULT(zlib not found - disabling compressed capture file support)
+ AC_MSG_RESULT(zlib not found - disabling gzip compression and decompression)
+ else
+ if test "x$ac_cv_func_inflatePrime" = "xno" ; then
+ AC_MSG_RESULT(inflatePrime not found in zlib - disabling gzipped capture file support)
+ fi
fi
fi
-if test "x$want_zlib" != "xno" ; then
- AC_CHECK_LIB(z, inflatePrime,
- [
- AC_DEFINE(HAVE_INFLATEPRIME, 1, [Define if we have inflatePrime])
- ])
-fi
-
dnl pcre check
AC_MSG_CHECKING(whether to use libpcre for regular expressions in dfilters)